SKU: BROBR81185
MPN: BR 81185
The 1.850 Exhaust Valve – 5.495 OAL 11/32 from BRODIX is a precision-engineered cylinder head component designed for high-performance engine builders and serious automotive enthusiasts. This exhaust valve serves as the critical flow control point in your engine's combustion cycle, managing the precise evacuation of spent gases from each cylinder. Whether you're building a race engine, restoring a classic muscle car, or optimizing an existing performance platform, selecting the correct exhaust valve specification is essential for achieving target horsepower, fuel efficiency, and engine longevity.
The 1.850-inch head diameter combined with the 11/32-inch stem diameter and 5.495-inch overall length establishes this valve's seat geometry and sealing characteristics. BRODIX valves are manufactured from premium alloy steel formulations that withstand extreme thermal cycling and combustion pressures inherent to high-RPM and forced-induction applications. The valve's precise dimensional tolerance ensures consistent sealing against the seat, minimizing blow-by and maximizing scavenging efficiency. This specification is commonly employed in small-block and mid-block Chevrolet engines, as well as select Ford and Mopar applications where factory valve sizes require replacement or performance upgrading.
Engine builders and performance shops rely on BRODIX exhaust valves for naturally aspirated, turbocharged, and supercharged builds where reliability and flow characteristics directly impact dyno results. This valve integrates seamlessly with modern cylinder head porting work, allowing tuners to optimize valve-to-wall clearance and exhaust port velocity. Before purchasing, verify that your specific engine platform—block type, head casting number, and valve seat angle—matches the 1.850 head diameter and 11/32 stem specifications. Installation requires proper valve seat machining, spring pressure validation, and installed height measurement to ensure correct valve timing and prevent valve-to-piston interference on high-lift cam profiles.
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